Show Mineral blotting stone is a novelty It was exhibited at the meeting of the National Academy of Sciences recently in session at Washington On the desk of one of the scientists was a thin slice of light colored stone He used it for a blotter and it absorbed ink better ihan any bibulous paper The stuff is a formation for-mation composed of sediment deposited by certain hot springs It has been accumulating ac-cumulating for ages in the locality mentioned men-tioned and is available in inexhaustible Quantities Highly porous it will take up a surprising quantity of ink The merchant will employ it incidentally asa as-a paperweight and occasionally the office of-fice boy will scrape it off with a knife an easy task the substance being very softmaking it as good as new Philadelphia Phila-delphia Press a r |